U.S. documents released under the Freedom of Information Act reveal that lax safety standards at Kadena Air Base in Okinawa may be to blame for the recent contamination of local drinking water sources.

U.S. Marine Allen Nelson first visited Okinawa in 1966 when the entire island was under American control and functioned as its springboard for the war in Vietnam. For two weeks, Nelson and his fellow new recruits spent their days practising guerilla warfare at Camp ...